State Emergency Communications Committee (SECC) Chairman Gary Blievernicht (WKAR-TV/East Lansing) has announced that the National Weather Service (NWS) will be testing/evaluating Snow Squall Warnings this coming winter. Stations are encouraged to consider airing the SVS-coded tests this winter as a part of a project coming from the NWS Detroit office.
The test coverage area includes:
- Midland Bay Huron
- Saginaw Tuscola Sanilac
- Shiawassee Genessee Lapeer St. Clair
- Livingston Oakland Macomb
- Washtenaw Wayne
- Lenawee Monroe
The Snow Squall Warning will be issued based on….
- Visibility less than 1/2 mile.
- Sub-freezing ambient road temperatures (or plunging temperatures that would produce a flash freeze).
- Wind gusts 20 mph or more.
- Forecaster judgement of impact, i.e. clear evidence that a snow squall could lead to dangerous conditions and possible multi-car accident (pileup) when one of the above criterion isn’t quite met.
- The test will likely start somewhere between December 1 and 8.
- The text product will be ARBSQWDTX with a WMO ID of WWUS51 KDTX.
- The VTEC (and thus, eventually the WEA code) will be SQ.W.
- The EAS code that will be used is SVS. This will come from the NOAA Weather Radio SAME.
- The NWS has never used an EAS code SVS.
- The NWS will not use the SVS EAS code for any follow up statements for TO.W or SV.W (tornado and severe thunderstorm warnings).
- The text will have “Bulletin – EAS Activation Requested.”
As this is mostly a life threatening travel issue, stations in the Southeast, East Central and Lenawee/Washtenaw local EAS groups pass this information along from NWS to LPs to all radio stations.